Orcein and elastic fibers.
D004396:Coloring Agents; D003238:Connective Tissue; D004547:Elastic Tissue; D010078:Oxazines; D013194:Staining and Labeling
D004396:Coloring Agents; D010078:Oxazines; C002313:PAcein
CONNECTIVE TISSUE; STAINS AND STAINING